Some other links

Projects
Computability in Europe

If you are looking for references
Bibliography of Mathematical Logic
Homepage of Computability Theory

Universities
Sobolev Institute of Mathematics
Novosibirsk State University
University of Heidelberg
Math. Dept. University of Wisconsin
Math. Dept. University of Notre Dame
Math. Dept. George Washington University

Professional organizations
Association for Symbolic Logic
American Mathematical Society

Some places I like
Heidelberg
Novosibirsk

More links
Foundations of mathematics mailing list (FOM)